574845603 Deck Belt Replacement for Husqvarna GT52XLS LS Series Yard Tractor - Compatible with 574 84 56-03 V-Belt

What It Is

This is a replacement deck belt (OEM reference 574 84 56-03) for Husqvarna GT52XLS and LS Series yard tractors. It drives the mower blades from the engine pulley, enabling cutting deck operation.

Fitment & Compatibility

Before buying, confirm your tractor model is on the compatibility list (GT52XLS, GTH52XLS, GTH52XLSI, LS series with 52-inch deck). Measure your old belt length (factory spec is 96.5 inches, 1/2-inch width) and compare to this belt. This is an aftermarket replacement, not OEM Husqvarna—check that your original belt number matches 574845603 or 574 84 56-03. Verify deck size is 52 inches; smaller or larger decks use different belts.

Key Things to Know

• Quality: Aftermarket belt may be slightly thinner or less durable than OEM. Inspect for fraying after first few hours.
• Installation: Moderate difficulty—requires removing deck or using a spring tensioner tool. Take photos before disassembly.
• Common gotcha: Belt routing is specific; misrouting causes poor blade engagement or premature wear. Refer to your owner’s manual diagram.
• Warranty: Aftermarket parts typically void any remaining Husqvarna warranty on the deck drive system.

Should You Buy It

If you need a budget-friendly replacement for a worn belt on a Husqvarna LS series with a 52-inch deck and you’re comfortable with basic mechanical work, this is a solid value. Not ideal if you want OEM durability or have a different deck size/model.